How popular is Orsola?

Orsola is an uncommonly occurring first name for women. Orsola is an equivalently unusual last name too for all people. (2000 U.S. CENSUS)

Which version is better?

The only popular varying form of Orsola (OUTSIDE TOP 2000) is Ursula. This relation of Orsola reached the apex of its popularity 116 years ago (#500), but now, Ursula has fallen out of fashion. (TOP 2000 NAMES, 2016)